added NException

dibi/libs/NException.php

@@ -0,0 +1,82 @@
+<?php
+
+/**
+ * dibi - tiny'n'smart database abstraction layer
+ * ----------------------------------------------
+ *
+ * Copyright (c) 2005, 2007 David Grudl aka -dgx- (http://www.dgx.cz)
+ *
+ * This source file is subject to the "dibi license" that is bundled
+ * with this package in the file license.txt.
+ *
+ * For more information please see http://php7.org/dibi/
+ *
+ * @copyright  Copyright (c) 2004, 2007 David Grudl
+ * @license    http://php7.org/nette/license  Nette license
+ * @link       http://php7.org/nette/
+ * @package    Nette
+ */
+
+
+
+/**
+ * Nette Exception base class
+ *
+ * @author     David Grudl
+ * @copyright  Copyright (c) 2004, 2007 David Grudl
+ * @package    Nette-Exception
+ */
+class NException extends Exception
+{
+    /** @var callback */
+    private static $oldHandler;
+
+    /** @var string */
+    private static $handlerClass;
+
+
+    /**
+     * Enables converting all PHP errors to exceptions
+     *
+     * @param  Exception class to be thrown
+     * @return void
+     */
+    public static function catchError($class = __CLASS__)
+    {
+        self::$oldHandler = set_error_handler(array(__CLASS__, '_errorHandler'), E_ALL);
+        self::$handlerClass = $class;
+    }
+
+
+
+    /**
+     * Disables converting errors to exceptions
+     *
+     * @return void
+     */
+    public static function restore()
+    {
+        if (self::$oldHandler !== NULL) {
+            set_error_handler(self::$oldHandler);
+            self::$oldHandler = NULL;
+        } else {
+            restore_error_handler();
+        }
+    }
+
+
+    /**
+     * Internal error handler
+     */
+    public static function _errorHandler($code, $message, $file, $line, $context)
+    {
+        self::restore();
+
+        if (ini_get('html_errors')) {
+            $message = strip_tags($message);
+        }
+
+        throw new self::$handlerClass($message, $code);
+    }
+
+}